Explosion-motor.



v No. 773,021.

,Y PATBNTBD OOT. 25, 1904. s.-js.' &\A.`LEW1S. EXPLOSION MOTOR.

AP-PLIUATION FILED MAR. 18. 1902. RENEWBD JAN. 28, 1904.

N0 MODEL.

um,... A j@ .O am. Y\\\\\\\\\\\\\\\\\\N\\\\. Y

,www

mf. w, @f R Patented October 25, 1901.1.y

Sas-.as

Liri-vis Aub ALET LEwLs,

sYRAUs'E, NEW YoiiK.

sPEcIrjIcATioiv forming par@ of Letters Patent Np. 77'3, o'21`, qateu october 25, 1904; ppiciloi i'd irmil 1e, '190;2. fnllfed, Jaua'f'yza, 190.4., serial No. iQLeeo. 4(No inode-,1.)

Ta .all .frh/0771, if?? `Weary.cion/cern.-

. Be it rnown that we, SHIRLEY S. Lnwrs'and ALBERT Lnwrs, citizens of the United States, and residents of Syracuse.. in th'eljcounty of Onondaga and State l.fof A* New Yorlgrhave invented certain new -and useful Improvements in Explosion-Motors, of which the following is a specification.

Our invention relates generally to eXplo` sion motors or engines, and more particularly to the class lknown as `Vtwo-cycle motors.

We shall describe a double two-cycle reciprocating engine embodying our invention and afterward point out the novelfeatures/in the claim.

The object of our inventionis, chieiiy, to produce a construction which will admit of two single two-cycle reciprocating engines being coupled together and is intended to be used especially on automobiles.

In the drawings wehave-shown our invention in-a form which we consider preferable;

but changes in construction may of course be cycle explosion-engine embodying our invention. Fig. 2 is a section through the cylinder-head on the line XX. Fig. 3 is asection through the cylinder on the line Y-Y.

Similar letters of reference indicate corresponding parts in the differentviews. I

Heretofore it has been customary to coni struct two-cycle reciprocating engines with the forward part of the cylinder communicating freely with the base or casing and bymeans `of a passage with the rear part of the cylinder. The gasolene and air are drawn into the casing or base on the rearward stroke of the' piston and compressed by the piston as it y moves forward and passed into the rear part of the cylinder as the burned gas of the preceding explosion escapes. When it is desired to couple two' single two-cycle reciprocating engines together, itbec'omes necessary, as the forward en d of each cylinder communicates freelyA with the casing, to provide means whereby the gas lwill not fl'ow from one cylinder to another, thereby interfering with the operation of the motor. This to our A indicates a central casing of any suitable @Qnstrutionf f- .Cylinders whichfhavefeominunicationlwith each other through the said casing, which has a guideway b at each end adjacent to the forward end of the cylinders,

.but of a diameter somewhat smaller than the said cylinder and with its axis coincident with the axes of the cylinders.

D is the piston, one in each cylinder, provided with'an extension d adjacent to the forward end ofthe cylinder. This extension is of a'diameter somewhat smaller vthan the piston proper and is adapted to work in -its corresponding guideway and also on the rearwardV stroke to enter the cylinder proper.

The guideway b may, if desired, be considered as part of the' cylinder, so far as the lextension of the piston is concerned.` The full length of the piston, with its extension, must `not be less than the length of the cylinder proper. vThe extension of the piston acts as a cross-head and has attached the connecting-rod LZ2, fastened to the crank-pin d3, carried by the main shaft df.

sis

As both cylinders are identical in constructwo passages e7 and es.

e is the inlet for the gasolene and air, located adjacent to the passage e7.

The operation is as follows: The piston proper, D, moves in the cylinder proper and the extension of the cylinder or casing, which acts as a guid eway. As the 'piston moves rearward it draws the gasolene and air into the chamber X, where it is mixed and formed IOO into gas, from whence it passes through the passage e7 into the chamber e, where it is confined until the piston makes its forward stroke, when it passes through the passage as into the chamber Y of the cylinder, where it is compressed by the return stroke of the piston and exploded by an electric spark or otherwise. The explosion drives the piston forward until the end Z coines in contact with the rod c3, thereby opening the exhaust-valve and allowing' the burned gas to escape. During this forward motion of the piston the passage es is opened or uncovered, allowing the fresh charge to pass into the chamber Y. The exhaust-valve is held open only until the piston has rnoved back a little more than enough to close the passage es.

Having thus described our invention, what we claim is4 1n a two-cycle reciprocating' engine, the combination of a cylinder, an intermediate chamber located adjacent thereto, a port in the forward end of the cylinder and a port intermediate of the cylinder connnunicating with said intermediate chamber, a gas-admitting port in the front of the cylinder, an exhaust-valve in the rear of the cylinder, a tappet-rod in front of the cylinder having connections with the rear exhaust-valve, and a piston in the cylinder acting as a valve to close the port intermediate of the cylinder leading to said intermediate chamber and to strike said tappct-rod.

Signed at Syracuse, in the county of Onondaga and State of New York, this 8th day ol- March, A. D. 1902.

SHI RLEY S. LIVIS. ALBERT LEWIS.

Vitnesses:

Guai-:Lus SnALs, JAMus F. GAnunuY. 

